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Gordon
Questions (21)
Is this a simple subject or a simple predicate?
Carla opened the manuscript.
1 answer
121 views
From a platform an object is projected vertically into air. Its height, h metres above ground level after t seconds is modelled
1 answer
851 views
The inland sandy desert is one of the largest. It covers part of 4 countries. 684000 sq km in desert land
232,000 sq km in sandy
1 answer
531 views
Sam sells a suit to Basil at one hundred and thirty three and one third percent of the wholesale price. The suit did not fit so
1 answer
460 views
A furniture shop bought a table from the manufacturer and marked up the purchase price by 50%. At the Augustus Homemaker Sale,
1 answer
631 views
1) A solid has a base area of 345 cm^2 and its volume is 4140 cm^3.
A)If that solid is placed in a cylindrical container that is
1 answer
493 views
A coat was priced at $200. The sale price was 40% discount. What did the coat cost?
1 answer
558 views
Hi I need help on this bonus question my teacher gave out it's reducing/oxidation equation in an acidic solution.
Cr(NCS)6-4 (aq)
0 answers
431 views
Charge +Q = +7.10 nC is uniformly distributed along the right half of a thin rod bent into a semicirle of radius R = 3.60 cm,
2 answers
1,172 views
mixing 100ml of 0.015M Nah2PO4 and 100ml of NA2HPO4. What is the pH?
This has got to be simple but why am I having trouble with
2 answers
508 views
How many rams of 96.5% pure NaOH pellets do you need to make 1 liter of 1.5 N NaOH?
1 answer
468 views
What is the pH of a buffer solution of 0.125M Acetic acid and 0.250M Sodium acetate? the Pk of Acetic acid is 4.76
3 answers
912 views
A 5.0ml sample of liquid requires 4.5 ml of a 0.093N NaOH solution. What is the titratable acidity of the liquid expressed as
2 answers
789 views
25.0 ml of a 0.13M HCL solution is titrated with 17.6 ml of NaOH. What is the Molarity of the NaOH?
3 answers
1,600 views
So,y(t) = 2.5e^-t cos2t
I need to find the derivative, which is y'(t)= -2.5e^-t(2sin 2t +cost 2t) . And now I need to find t when
3 answers
554 views
How to solve 2.5e^-t cos2t=0?
4 answers
593 views
Two angles are complementary. The sum of the measure of the first angle and one-fourth of the second angle is 57.75 degrees.
0 answers
505 views
what are the advantages of beginning with RNA versus DNA?
1 answer
395 views
Briefly, what is large scale fermentation?
0 answers
340 views
I have to write a paper on the decolonization of Gambia (a country in West Africa) or how The Gambia attained its independence.
1 answer
657 views
Need ideas for creating a future society. Laws, education, finding leaders, city plans, money. I have most of it done but need
2 answers
463 views
Answers (14)
This is wrong
It takes about 15 seconds to realize there is no way to arrive at the answer. 15 cows, has nothing to do with the rest of the quest. Whoever wrote Mark McCain's text book should be fired ;).
Steve, you idiot. There were no typos you completely ignorant buffoon. This person copied and pasted the problem so don't suspect they made a typo and don't assume they made a mistake you cocky peon.
I don't get it
For the first one I believe it to be C and B For the second it is B and C
Thanks for helping me.
mew = HOOC-CHOH-CHOH-COOH/2 150 gr/mol /2 = 75gr/mol 4.50ml x .093N x 75 gr/mol = 31.4 grams of tartaric acid in the 5ml sample. 31.4gr /5.0 ml = x gr/1 liter is this correct?
mols HCl= .13M x 25ml = 3.25 M ml 1:1 so mols NaOH = 3.25 M = (3.25 M ml /25 ml) Correct thanks
ph = PK + log (base concentration/acid concentration) pH =4.76 + log (.250/.125) pH = 4.76 = Log (2)
its B
ok~ get it clearly..thanks^^
Father is rr Mother is Rr Genotype consists of two alphabets actually. Non roller means both is rr and heterozygous means different alleles (alphabets).
Now I get it..thanks^^ really helps a lot!!
But I don't understand how t = (2k+1)(pi/4)? From what I calculated, 2t= cos^-1 0 t= 45 Is it correct?
